You created 5 separate Kitely accounts using the same Katniss Everdeen name, so after the first one, the following ones had a serial number appended to them. If you see Katniss Everdeen_3 when you go inworld then it's because that is the account you used to login into the viewer. However, the trial world you create was actually created in the Katniss Everdeen_4 account.

What I suggest is that you contact us via email and we'll help you delete the redundant accounts and ensure that you have a world in the same Kitely account with which you log into the viewer.